StringManipulationInC#-Finding a string within a string string s = "Hello World" ; bool stringExists = s.Contains( "ello" ); //stringExists =true as the string contains the substring string s = "Hello World" ; int location = s.IndexOf( "ello" ); // location = 1 string s = "Hello World" ; int location = s.LastIndexOf( "l" ); // location = 9 To Be Continue